[  487.639781] netdevsim netdevsim276 eni276np1: renamed from eth0
[  487.640395] netdevsim netdevsim760 eni760np1: renamed from eth1
[  487.731972] Could not find device with ifindex 2000 in netnsfd 11
[  487.732101] Could not find netns with fd: 2000
[  487.732200] Cannot link a netdevsim to itself
[  487.732333] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).